modelPartialBuilding

Partial class for building model

Information

Partial model to be used for modeling the thermal loads on an energy transfer station or a dedicated plant. Models extending this class are typically used in conjunction with Buildings.DHC.Loads.BaseClasses.FlowDistribution and models extending Buildings.DHC.Loads.BaseClasses.PartialTerminalUnit as described in the schematics here under. The fluid ports represent the connection between the production system and the building distribution system.

Scaling

Scaling is implemented by means of a multiplier factor facMul. Each extensive quantity (mass and heat flow rate, electric power) flowing out through fluid ports, or connected to an output connector is multiplied by facMul. Each extensive quantity (mass and heat flow rate, electric power) flowing in through fluid ports, or connected to an input connector is multiplied by 1/facMul. This allows modeling, with a single instance, multiple identical buildings served by the same energy transfer station.

Examples

See various use cases in Buildings.DHC.Loads.BaseClasses.Examples.

Parameters

Type	Name	Default	Description
Integer	nPorts_aHeaWat	0	Number of heating water inlet ports
Integer	nPorts_bHeaWat	0	Number of heating water outlet ports
Integer	nPorts_aChiWat	0	Number of chilled water inlet ports
Integer	nPorts_bChiWat	0	Number of chilled water outlet ports
Configuration
Boolean	have_heaWat	false	Set to true if the building has heating water system
Boolean	have_chiWat	false	Set to true if the building has chilled water system
Boolean	have_eleHea	false	Set to true if the building has decentralized electric heating system
Boolean	have_eleCoo	false	Set to true if the building has decentralized electric cooling system
Boolean	have_fan	false	Set to true if fan power is computed
Boolean	have_pum	false	Set to true if pump power is computed
Boolean	have_weaBus	false	Set to true to use a weather bus
Boolean	have_heaLoa	have_heaWat or have_eleHea	Set to true if the building has heating loads
Boolean	have_cooLoa	have_chiWat or have_eleCoo	Set to true if the building has cooling loads
Scaling
Real	facMul	1	Multiplier factor
Assumptions
Boolean	allowFlowReversal	false	= true to allow flow reversal, false restricts to design direction (port_a -> port_b)

Connectors

Type	Name	Description
Buildings.BoundaryConditions.WeatherData.Bus	weaBus	Weather data bus
Modelica.Fluid.Interfaces.FluidPorts_a[nPorts_aHeaWat]	ports_aHeaWat	Heating water inlet ports
Modelica.Fluid.Interfaces.FluidPorts_b[nPorts_bHeaWat]	ports_bHeaWat	Heating water outlet ports
Modelica.Fluid.Interfaces.FluidPorts_a[nPorts_aChiWat]	ports_aChiWat	Chilled water inlet ports
Modelica.Fluid.Interfaces.FluidPorts_b[nPorts_bChiWat]	ports_bChiWat	Chilled water outlet ports
Modelica.Blocks.Interfaces.RealOutput	QHea_flow	Total heating heat flow rate transferred to the loads (>=0)
Modelica.Blocks.Interfaces.RealOutput	QCoo_flow	Total cooling heat flow rate transferred to the loads (<=0)
Modelica.Blocks.Interfaces.RealOutput	PHea	Power drawn by decentralized heating system
Modelica.Blocks.Interfaces.RealOutput	PCoo	Power drawn by decentralized cooling system
Modelica.Blocks.Interfaces.RealOutput	PFan	Power drawn by fan motors
Modelica.Blocks.Interfaces.RealOutput	PPum	Power drawn by pump motors

Components

Type	Name	Description
Fluid.BaseClasses.MassFlowRateMultiplier[nPorts_aHeaWat]	mulHeaWatInl	Mass flow rate multiplier
Fluid.BaseClasses.MassFlowRateMultiplier[nPorts_aChiWat]	mulChiWatInl	Mass flow rate multiplier
Fluid.BaseClasses.MassFlowRateMultiplier[nPorts_bHeaWat]	mulHeaWatOut	Mass flow rate multiplier
Fluid.BaseClasses.MassFlowRateMultiplier[nPorts_bChiWat]	mulChiWatOut	Mass flow rate multiplier
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulQHea_flow	Scaling
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulQCoo_flow	Scaling
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulPHea	Scaling
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulPCoo	Scaling
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulPFan	Scaling
Buildings.Controls.OBC.CDL.Reals.MultiplyByParameter	mulPPum	Scaling

Name	Description
Medium

Revisions

December 21, 2020, by Antoine Gautier:
Added multiplier factor.
This is for issue 2291.
February 21, 2020, by Antoine Gautier:
First implementation.